This passage refers to the events of the Battle of Marathon due to while Persionas and Athenians where fighting in this town close to Athens, Phiedippides was sent to send a message to try to make Spartans join at the battle. The other three battles had the participation of the Spartans being a runner as Phiedippides not needed.
Answer and Explanation: From the following given statement, we can state that this address is officially known as State of the Union address. The address is often SOTU is known as or referred to as the annual message which is delivered by the POTUS i.e. president of US to joint session of US Congress at the start of the each calendar year. This message is typically aimed towards the budget and the economic result of the nation.
Expand it?
I haven't watched the documentary yet so. Sorry